Massive new cruise ship unveils jaw-dropping outdoor theme park in middle of the ocean

Cruise lines have long competed over bigger ships and flashier amenities, but one company is now taking that rivalry to new heights — literally.

MSC Cruises has unveiled plans for a sprawling open-air "theme park" at sea aboard its upcoming flagship, MSC World Asia, including an over-water swing ride that will send passengers soaring above the ocean, according to a company press release.

The attraction, called "Cliffhanger," is billed as Europe’s first over-water swing of its kind...